Fountain pen



I. SALZ.

FOUNTAIN PEN A ril 19, 193.

Filed Jan. 27, 1957 WITNESSES INVENTOR 4M Ign Q23 8 Q25 2 I BY ATTORNEYSPatented A r. 19, 1938 UNITED;- STATES PATENT OFFICE 7 Claims.

This invention relates to improvements in fountain pens and it is anobject of the invention to provide a fountain pen with improved meanswhereby ink or writing fluid can be produced in the reservoir of thepen. by means of a solvent such as water, and anink stick, cartridge, orpellet.

It is a further object to provide an improved fountain pen of the abovetype in which the ink I stick, cartridge, or pellet is held transverselyof the fluid passage beneath the reservoir of the fountain pen so thatit will readily dissolve in the fluid to produce ink or the like, andthe ink stick is partially encased so as to prevent it from E completelydisintegrating and clogging the feed duct leading to the nib.

Another object is the provision in a fountain pen of a removable stopperor closure in association with a perforated tube to receive the inkpellet or the like, whereby a new ink pellet may without difficulty bedeposited. in the pen and which is formed so that it will not leak andWill not interfere with the proper operation of the feeding or fillingmechanism.

In the accompanying drawing:-

Fig. 1 is an elevation partially in section of a fountain pen embodyingmy invention;

Fig. 2 is a. sectional view on theline 2-2 of Fig. 1;

Fig. 3 is a side View in perspective of the re- 'movable perforated tubeand stopper for holding the ink pellet, stock, or cartridge; and v Fig.4 is a View of one type. of ink stick or the like which may be used inassociation with. my apparatus.

My invention may be used in association with any desired style or designof fountain pen but is particularly suited for use with fountain pens ofthe self-filling, rubber sac type. In the accompanying drawing it isillustrated in association with one of the standard types of rubber sac,self-filling fountain pens but it is to be understood that other typesof pens may be employed.

The numeral it) represents the pen or nib which is provided with afeeder having a feed and air duct l2 of the usual type provided thereinwhereby ink may be drawn into the filling sac and will automaticallyfeed to the point of the pen when the pen is in use. The nib and feederare secured in the usual manner in the section It, which is circular incross section and tapers slightly towards the lower end where anenlarged collar portion is 55 provided, all in the usual manner. Theupper portion of the section is of slightly reduced diameter so as toreceive the lower end of the barrel l5, which is externally threaded asat I6 adjacent its lower end so that the cap I! may be secured 60thereto. The cap is of usual construction and may be provided with aclip l8 and ornamental bands I9;

At its upper end, the section M is provided with a shank of reduceddiameter to which is secured the lower end of the sac 2|, which ispreferably formed of rubber or similar non-porous, resilient materialwhich when compressed and released will create sufficient suction todraw fluid into the sac and retain it therein. The side of the barrel isslotted in the usual manner as at 22, so as to receive the filling lever23, which is pivoted as at 24 to the barrel. The lower end of the lever25 extends below the pivot 24 so that when thehan-dle 26 at the upperend of the lever is pivoted outwardly the portion 25 will projectinwardly engaging the metal strip 2'8, which is secured inside thebarrel in the usual manner, thereby forcing it inwardly and causing itto compress the rubber sac 2|. A fluid passage 28 in the section lflaffords communication between the 'sac and' feeder ducts.

The mechanism heretofore described is one well-known type of rubber sac,self-filling fountain pen and is operated in the usual manner. Thus whenthe upper end 26 of the lever 23 is pivoted outwardly it will compressthe sac forcing the contents thereof outwardly through the fluid passage28 provided in the section l4 and. the feed duct l2. If the nib andfeeder are inserted in a fluid and the lever 23 is returned to theposition shown in Fig. 1, the rubber sac will slowly return to itsnormal position drawing the fluid upwardly through the feed duct l2,fluid passage 28, and thence into the sac, all in the usual manner.

So that writing'fluid may be formed inside the pen by means of an inkpellet or the like, and a solventfor the pellet, I provide an opening inthe side of the section formed. so as to receive a perforated tube orthe like for holding the pellet transversely of the fluid passage 28beneath and adjacent to the rubber sac.

In carrying out my invention, I prefer to provide the section It with arecessed portion indicated at 30 in its external surface a shortdistance below the lower end of the barrel l5. Extending inwardly fromthe recessed portion through the wallof the section, I provide anopening or bore 3| which communicates internally with the fluid passage28. Opposite thev bore 3| the inner wall of the section may be providedwith a recess 32 for receiving the end of the perforated tube as will belater explained.

I also. provide a removable member which serves. not only as a, closurefor the bore or opening. 3|, but also as a casing for retaining andholding in proper position an ink pellet, ink stick, or the like. Thismember may consist of a tube 33 of sufficient length to extend throughthe opening 30 transversely of the fluid passage 28, and

into the recess 32 in the opposite wall. At its outer end the tube 33 ispreferably provided with a cap 34 of slightly enlarged diameter so as toengage the outer surface of the wall surrounding the opening 3!. Thetube 33 and the cap 34 serve together as a closure for the duct or bore3|. The tube 33 also serves as a casing for the ink pellet or ink stick,and in order that the fluid in the pen may come into contact with theink stick or pellet and cause it to dissolve and form ink or similarwriting fluid, the tube should be provided with a plurality ofperforations, such as are indicated at 35, and of which there may betwo, four, or even more in number.

In using my pen the perforated tube 33 is withdrawn from the opening inthe section. This may be conveniently accomplished in view of theprovision of the enlarged head 34, which enables the insertion of aninstrument or the finger nail beneath the head. When the tube has beenremoved as shown in Fig. 3, an ink stick or pellet 36 of the type shownin Fig. 4 may be inserted through the open end thereof and the tube isthen replaced in the opening 3| so as to extend transversely of thefluid passage with the open end thereof projecting into the recess 32 asshown most clearly in Figs. 1 and 2. The pen may then be filled with asuitable fluid solvent for the ink stick or pellet, such as water, inthe manner heretofore described. The water or other fluid will enterthrough the perforations 35 in the tube causing a portion of the inkstick or pellet to dissolve and thereby produce ink or similar writingfiuid.

From time to time as the fluid in the pen is exhausted it may be filledwith a new supply of fluid; likewise, when the ink stick or pelletbecomes completely dissolved a new stick or pellet may be convenientlyinserted in the pen by removing the tube 33 as described above. If thetube 33 is removed while there is fluid in the pen, the pen should beheld in inverted position with the nib pointing upwardly so as toprevent leakage of the fluid outwardly through the duct or opening 3 I.A single supply of ink stick or pellet should last for several fillingswith fluid and in that way my improved type of pen is very economical touse.

The perforated tube 33 serves not only as a holder for the stick orpellet, holding it in proper position to be dissolved, but also as aprotective casing to prevent it from becoming disintegrated and therebyclog the filling and feeding duct of the feeder. By projecting the openend of the tube into the recess 32, it is effectually held in properposition and the pellet can not escape therefrom. When the tube isformed in the manner shown in the accompanying drawing, it should havetight frictional engagement with the sides or walls of the duct 3| so asto prevent leakage. Instead of this type of construction, however, I maythread the tube into the opening, or, if desired, may have the tubepermanently secured in the opening, and provide it with a removable capwhich is threaded or otherwise suitably secured in position.

It will be seen by the foregoing description of one illustrativeembodiment of my invention that I have provided an improved fountain penwhich is provided with removable means in the section portion whereby anink stick or pellet may be inserted inside the pen and will be heldtransversely of the fluid passage so that it can be dissolved by asuitable solvent so as to produce ink or other writing fluid. It willalso be seen that by means of my invention the ink stick or pellet maybe conveniently replaced with a new supply and that the removable meansdoes not leak, nor does it in any way interfere with the properoperation of the pen or the feeding and filling mechanism.

It should be understood, of course, that modifications may be made inthe illustrated and described embodiment of my invention withoutdeparting from the invention as set forth in the accompanying claims.

I claim:

1. In a self-filling fountain pen, a removable perforated tube disposedtransversely of the section above the feeder for holding an ink stick orthe like.

2. In a fountain pen of the sac-filling type, a section providing afluid passage between the sac and the feeder, said section beingprovided with an opening in one side thereof communicating with thefluid passage, and a removable perforated tube disposed in said openingand extending transversely of the fluid passage, said tube serving as aclosure for the opening and also being co-operable for holding an inkpellet or the like in the fluid passage so as to communicate with thefluid supply.

3. The combination with a self-filling fountain pen having a rubberfilling sac, a feeder and a nib, and a section providing a passagebetween the sac and feeder, of a perforated tube mounted in the sectiontransversely of the passage.

4. The combination with a self-filling fountain pen having a rubberfilling sac, a feeder and a nib, and a section providing a passagebetween the sac and feeder, of a removable perforated tube for receivingan ink stick or the like mounted in the section adjacent the lower endof the sac and transversely of the passage.

5. In a self-filling fountain pen comprising a cylindrical member,suction means inside the cylindrical member for drawing a fluid insidesaid member, a nib and feeder supported at one end of the cylindricalmember, said feeder providing communication between the inside of thecylindrical member and the nib, said cylindrical member being formedwith an opening at one side thereof between the feeder and the suctionmeans, and a removable perforated tube disposed in said opening andextending transversely of the cylindrical member substantially from oneside to the other thereof, said tube being co-operable to hold an inkpellet or the like in communication with fluid inside the cylindricalmember and having an enclosed end serving as a closure for the openingin the cylindrical member.

6. A self-filling fountain pen as set forth in claim 5 in which theexternal diameter of the tube is substantially the same as the diameterof the opening in the cylindrical member and the enclosed end is ofgreater diameter so as to extend beyond the edges of the opening.

7. A self-filling fountain pen as set forth in claim 5 in which theinterior of the cylindrical member is provided with a recess oppositethe opening and into which the end of the tube projects.

IGNATZ SALZ.

